#include<iostream>
#include<vector>

using namespace std;

void test()
{

 vector<int> v1(10,2);
 vector<int>::iterator it = v1.begin();
 while(it!=v1.end())
 {
   cout<<*it;
   it++;
 }
 cout<<endl;

       
}

int main()
{

  test();

  return 0;
}
